If you are analyzing this for a forensic or OSINT task, consider the following methods:
: 2021-06-27_02-52-12 indicates the file was likely generated or saved on June 27, 2021, at 02:52:12 (local or UTC time). video_2021-06-27_02-52-12-yKyUtmyL.mp4
: Telegram often appends unique strings to saved media files to prevent overwriting. If you are analyzing this for a forensic
: yKyUtmyL is a short, case-sensitive alphanumeric string. This pattern is characteristic of: video_2021-06-27_02-52-12-yKyUtmyL.mp4
: Check the very beginning or end of the video for "steganography"—flags hidden in single frames or hidden within the audio track using a spectrograph.